问题
I encountered a strange bug from simulator of watchOS2 on XCode.
I handled a notification using UILocalNotification and modified storyboard of static notification.
But when I check a value "Wants Sash Blur" and build, It makes an error related with "Carousel.app"(like an unexpectedly stopped.)
However, When I turn off that option, it works properly.
I don't know why it makes my app break down.
Here is an error log
Time Awake Since Boot: 1500 seconds
System Integrity Protection: enabled
Crashed Thread: 19 com.apple.PepperUICore.Blur
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000028
Exception Note: EXC_CORPSE_NOTIFY
VM Regions Near 0x28:
-->
__TEXT 0000000000087000-0000000000312000 [ 2604K] r-x/rwx SM=COW /Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Developer/SDKs/WatchSimulator.sdk/System/Library/CoreServices/Carousel.app/Carousel
Application Specific Information:
CoreSimulator 201.3 - Device: Apple Watch - 42mm - Runtime: watchOS 2.1 (13S660) - DeviceType: Apple Watch - 42mm
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x07602886 semaphore_wait_trap + 10
1 libdispatch.dylib 0x072987f8 _dispatch_semaphore_wait_slow + 298
2 libdispatch.dylib 0x072986c5 dispatch_semaphore_wait + 37
3 com.apple.PepperUICore 0x042b20b6 _PUICBlurApply + 456
4 com.apple.PepperUICore 0x042b2723 PUICBlurApply + 24
5 com.apple.CarouselUIServices 0x039a7fab -[CUISAlertPlatterView updateBlurWithContext:] + 885
6 com.apple.CarouselUIServices 0x039a7c26 -[CUISAlertPlatterView updateBlurIfNeeded] + 129
7 com.apple.CarouselUIServices 0x039a7a19 -[CUISAlertPlatterView didMoveToWindow] + 68
8 com.apple.UIKit 0x04bf6fae -[UIView(Internal) _didMoveFromWindow:toWindow:] + 2053
9 com.apple.UIKit 0x04bf6b83 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 986
10 com.apple.UIKit 0x04bf6b83 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 986
11 com.apple.UIKit 0x04bf6b83 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 986
12 com.apple.UIKit 0x04c0dc3a -[UIScrollView _didMoveFromWindow:toWindow:] + 85
13 com.apple.UIKit 0x04bf6b83 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 986
14 com.apple.UIKit 0x04bea9bc __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 180
15 com.apple.UIKit 0x04bea894 -[UIView(Hierarchy) _postMovedFromSuperview:] + 489
16 com.apple.UIKit 0x04bf9f64 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 2307
17 com.apple.UIKit 0x04be8893 -[UIView(Hierarchy) addSubview:] + 56
18 com.apple.Carousel 0x000f545e 0x87000 + 451678
19 com.apple.Carousel 0x0017b963 0x87000 + 1001827
20 com.apple.Carousel 0x00222373 0x87000 + 1684339
21 com.apple.Carousel 0x001b9254 0x87000 + 1253972
22 com.apple.Carousel 0x001e405f 0x87000 + 1429599
23 com.apple.BaseBoard 0x023e19a0 __22-[BSTransaction begin]_block_invoke + 115
24 com.apple.BaseBoard 0x023e63a3 -[BSTransaction _preventTransactionCompletionForReason:ignoringAuditHistory:andExecuteBlock:] + 64
25 com.apple.BaseBoard 0x023e18c7 -[BSTransaction begin] + 873
26 com.apple.Carousel 0x000f4616 0x87000 + 448022
27 com.apple.Carousel 0x000f3b1e 0x87000 + 445214
28 com.apple.BaseBoard 0x023f2df1 -[BSEventQueueEvent _execute] + 43
29 com.apple.BaseBoard 0x023f2dc1 -[BSEventQueueEvent executeFromEventQueue] + 33
30 com.apple.BaseBoard 0x023eac29 -[BSEventQueue _processNextEvent] + 354
31 com.apple.BaseBoard 0x023ea0d2 -[BSEventQueue _executeOrPendEvents:position:] + 954
32 com.apple.BaseBoard 0x023ea183 -[BSEventQueue executeOrInsertEvents:atPosition:] + 48
33 com.apple.BaseBoard 0x023ea14b -[BSEventQueue executeOrInsertEvent:atPosition:] + 92
34 com.apple.Carousel 0x000f3174 0x87000 + 442740
35 com.apple.Carousel 0x000d59f0 0x87000 + 322032
36 com.apple.Carousel 0x000d58ee 0x87000 + 321774
37 com.apple.Carousel 0x001c4908 0x87000 + 1300744
38 com.apple.Carousel 0x001c4656 0x87000 + 1300054
39 com.apple.BaseBoard 0x023e19a0 __22-[BSTransaction begin]_block_invoke + 115
40 com.apple.BaseBoard 0x023e63a3 -[BSTransaction _preventTransactionCompletionForReason:ignoringAuditHistory:andExecuteBlock:] + 64
41 com.apple.BaseBoard 0x023e18c7 -[BSTransaction begin] + 873
42 com.apple.Carousel 0x001f559d 0x87000 + 1500573
43 com.apple.Carousel 0x001f7fdd 0x87000 + 1511389
44 com.apple.BaseBoard 0x023f2df1 -[BSEventQueueEvent _execute] + 43
45 com.apple.BaseBoard 0x023f2dc1 -[BSEventQueueEvent executeFromEventQueue] + 33
46 com.apple.BaseBoard 0x023eac29 -[BSEventQueue _processNextEvent] + 354
47 com.apple.BaseBoard 0x023eae01 -[BSEventQueue _removeEventQueueLock:] + 145
48 com.apple.BaseBoard 0x023e72e2 -[BSEventQueueLock relinquish] + 62
49 com.apple.Carousel 0x001f55c8 0x87000 + 1500616
50 com.apple.Carousel 0x001fe671 0x87000 + 1537649
51 libdispatch.dylib 0x0728f72b _dispatch_call_block_and_release + 15
52 libdispatch.dylib 0x072ad40d _dispatch_client_callout + 14
53 libdispatch.dylib 0x07295fce _dispatch_main_queue_callback_4CF + 689
54 com.apple.CoreFoundation 0x0662db3e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14
55 com.apple.CoreFoundation 0x065eb864 __CFRunLoopRun + 2356
56 com.apple.CoreFoundation 0x065eac76 CFRunLoopRunSpecific + 470
57 com.apple.CoreFoundation 0x065eaa8b CFRunLoopRunInMode + 123
58 com.apple.GraphicsServices 0x04af2097 GSEventRunModal + 192
59 com.apple.GraphicsServices 0x04af1ed4 GSEventRun + 104
60 com.apple.UIKit 0x04b39e96 UIApplicationMain + 160
61 com.apple.Carousel 0x00141872 0x87000 + 764018
62 libdyld.dylib 0x072d1ae1 start + 1
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x0760a7f6 kevent64 + 10
1 libdispatch.dylib 0x0729c2db _dispatch_mgr_invoke + 257
2 libdispatch.dylib 0x0729c02b _dispatch_mgr_thread + 60
Thread 2:
0 libsystem_kernel.dylib 0x0760284a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x07601c34 mach_msg + 68
2 com.apple.CoreFoundation 0x065ec146 __CFRunLoopServiceMachPort + 214
3 com.apple.CoreFoundation 0x065eb526 __CFRunLoopRun + 1526
4 com.apple.CoreFoundation 0x065eac76 CFRunLoopRunSpecific + 470
5 com.apple.CoreFoundation 0x065eaa8b CFRunLoopRunInMode + 123
6 com.apple.Foundation 0x046a7601 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 308
7 com.apple.Foundation 0x0474d9cd -[NSRunLoop(NSRunLoop) run] + 82
8 com.apple.UIKit 0x051ca202 -[UIStatusBarServerThread main] + 967
9 com.apple.Foundation 0x04759e84 __NSThread__start__ + 1346
10 libsystem_pthread.dylib 0x075cfa26 _pthread_body + 138
11 libsystem_pthread.dylib 0x075cf99c _pthread_start + 155
12 libsystem_pthread.dylib 0x075ccf96 thread_start + 34
Thread 3:: com.apple.springboard.backgroundappservices
0 libsystem_kernel.dylib 0x0760284a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x07601c34 mach_msg + 68
2 com.apple.CoreFoundation 0x065ec146 __CFRunLoopServiceMachPort + 214
3 com.apple.CoreFoundation 0x065eb526 __CFRunLoopRun + 1526
4 com.apple.CoreFoundation 0x065eac76 CFRunLoopRunSpecific + 470
5 com.apple.CoreFoundation 0x065eaa8b CFRunLoopRunInMode + 123
6 com.apple.Carousel 0x00129cd0 0x87000 + 666832
7 libsystem_pthread.dylib 0x075cfa26 _pthread_body + 138
8 libsystem_pthread.dylib 0x075cf99c _pthread_start + 155
9 libsystem_pthread.dylib 0x075ccf96 thread_start + 34
Thread 4:: com.apple.springboard.icongeneration
0 libsystem_kernel.dylib 0x0760284a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x07601c34 mach_msg + 68
2 com.apple.CoreFoundation 0x065ec146 __CFRunLoopServiceMachPort + 214
3 com.apple.CoreFoundation 0x065eb526 __CFRunLoopRun + 1526
4 com.apple.CoreFoundation 0x065eac76 CFRunLoopRunSpecific + 470
5 com.apple.CoreFoundation 0x065eaa8b CFRunLoopRunInMode + 123
6 com.apple.Carousel 0x00129dc6 0x87000 + 667078
7 libsystem_pthread.dylib 0x075cfa26 _pthread_body + 138
8 libsystem_pthread.dylib 0x075cf99c _pthread_start + 155
9 libsystem_pthread.dylib 0x075ccf96 thread_start + 34
Thread 5:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 6:: Dispatch queue: com.apple.opengl.cvmDoWork
0 libLLVMContainer.dylib 0x09bec177 llvm::LiveIntervalUnion::extract(llvm::LiveInterval&, llvm::LiveRange const&) + 343
1 libLLVMContainer.dylib 0x09bf2f7f llvm::LiveRegMatrix::unassign(llvm::LiveInterval&) + 255
2 libLLVMContainer.dylib 0x09c90c04 (anonymous namespace)::RAGreedy::evictInterference(llvm::LiveInterval&, unsigned int, llvm::SmallVectorImpl<unsigned int>&) + 532
3 libLLVMContainer.dylib 0x09c902f8 (anonymous namespace)::RAGreedy::tryEvict(llvm::LiveInterval&, llvm::AllocationOrder&, llvm::SmallVectorImpl<unsigned int>&, unsigned int) + 840
4 libLLVMContainer.dylib 0x09c8ceed (anonymous namespace)::RAGreedy::selectOrSplitImpl(llvm::LiveInterval&, llvm::SmallVectorImpl<unsigned int>&, llvm::SmallSet<unsigned int, 16u, std::__1::less<unsigned int> >&, unsigned int) + 557
5 libLLVMContainer.dylib 0x09c8bcb9 (anonymous namespace)::RAGreedy::selectOrSplit(llvm::LiveInterval&, llvm::SmallVectorImpl<unsigned int>&) + 121
6 libLLVMContainer.dylib 0x09c8bf72 non-virtual thunk to (anonymous namespace)::RAGreedy::selectOrSplit(llvm::LiveInterval&, llvm::SmallVectorImpl<unsigned int>&) + 34
7 libLLVMContainer.dylib 0x09c83ba3 llvm::RegAllocBase::allocatePhysRegs() + 195
8 libLLVMContainer.dylib 0x09c8badb (anonymous namespace)::RAGreedy::runOnMachineFunction(llvm::MachineFunction&) + 1499
9 libLLVMContainer.dylib 0x09c2311a llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 106
10 libLLVMContainer.dylib 0x0a1b3e93 llvm::FPPassManager::runOnFunction(llvm::Function&) + 595
11 libLLVMContainer.dylib 0x0a1b380a llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) + 186
12 libLLVMContainer.dylib 0x0a1b3710 llvm::legacy::FunctionPassManager::run(llvm::Function&) + 96
13 libLLVMContainer.dylib 0x09862c94 llvm::JIT::getPointerToFunction(llvm::Function*) + 180
14 libGLVMPlugin.dylib 0x18dd4b1e cvmContentBuildLLVMFunctions(_cvms_plugin_element_s const*, llvm::Function**, unsigned int) + 94
15 libGLVMPlugin.dylib 0x18dd48ff cvmsPluginElementBuild + 1039
16 libCoreVMClient.dylib 0x0973b110 cvmsCompBuildElement + 121
17 libCoreVMClient.dylib 0x0973ff5f cvmsServerElementBuild + 1002
18 libCoreVMClient.dylib 0x0973ba37 cvms_element_build_from_source + 107
19 libCVMSPluginSupport.dylib 0x09734872 cvm_deferred_build_modular(void*) + 393
20 libdispatch.dylib 0x072ad40d _dispatch_client_callout + 14
21 libdispatch.dylib 0x07295076 _dispatch_queue_drain + 1065
22 libdispatch.dylib 0x072949c1 _dispatch_queue_invoke + 563
23 libdispatch.dylib 0x072981f2 _dispatch_queue_override_invoke_owning + 32
24 libdispatch.dylib 0x072ad40d _dispatch_client_callout + 14
25 libdispatch.dylib 0x07296598 _dispatch_root_queue_drain + 744
26 libdispatch.dylib 0x072962a9 _dispatch_worker_thread3 + 108
27 libsystem_pthread.dylib 0x075cf43e _pthread_wqthread + 1050
28 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 7:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 8:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 9:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 10:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 11:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 12:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 13:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 14:
0 libsystem_kernel.dylib 0x0760289e semaphore_timedwait_trap + 10
1 libdispatch.dylib 0x072987a2 _dispatch_semaphore_wait_slow + 212
2 libdispatch.dylib 0x072986c5 dispatch_semaphore_wait + 37
3 libdispatch.dylib 0x07297c91 _dispatch_worker_thread + 169
4 libsystem_pthread.dylib 0x075cfa26 _pthread_body + 138
5 libsystem_pthread.dylib 0x075cf99c _pthread_start + 155
6 libsystem_pthread.dylib 0x075ccf96 thread_start + 34
Thread 15:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 16:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 17:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 18:
0 libsystem_kernel.dylib 0x07609d76 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x075cf52d _pthread_wqthread + 1289
2 libsystem_pthread.dylib 0x075ccf72 start_wqthread + 34
Thread 19 Crashed:: com.apple.PepperUICore.Blur
0 com.apple.QuartzCore 0x040b741f -[CARenderer dealloc] + 117
1 libobjc.A.dylib 0x060fe060 objc_object::sidetable_release(bool) + 238
2 libobjc.A.dylib 0x060fd361 objc_release + 65
3 libobjc.A.dylib 0x060fd318 objc_storeStrong + 39
4 com.apple.PepperUICore 0x04223431 -[PUICLayerRenderer .cxx_destruct] + 65
5 libobjc.A.dylib 0x060e98dd object_cxxDestructFromClass(objc_object*, objc_class*) + 116
6 libobjc.A.dylib 0x060e9864 object_cxxDestruct + 20
7 libobjc.A.dylib 0x060f3cfc objc_destructInstance + 48
8 libobjc.A.dylib 0x060f3d2d object_dispose + 20
9 libobjc.A.dylib 0x060fe060 objc_object::sidetable_release(bool) + 238
10 libobjc.A.dylib 0x060fd361 objc_release + 65
11 com.apple.PepperUICore 0x042b3f21 ___PUICBlurApply_block_invoke + 3896
12 com.apple.PepperUICore 0x042b21b2 +[PUICBlurViewFactory performCABlurWorkOnBackgroundThread:] + 15
13 com.apple.Foundation 0x046a57f9 -[NSThread main] + 76
14 com.apple.Foundation 0x04759e84 __NSThread__start__ + 1346
15 libsystem_pthread.dylib 0x075cfa26 _pthread_body + 138
16 libsystem_pthread.dylib 0x075cf99c _pthread_start + 155
17 libsystem_pthread.dylib 0x075ccf96 thread_start + 34
Thread 19 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x7c326800 ecx: 0x00000002 edx: 0x147ac858
edi: 0x040b73b8 esi: 0x7c39ee00 ebp: 0xb0830b48 esp: 0xb0830b20
ss: 0x00000023 efl: 0x00010206 eip: 0x040b741f cs: 0x0000001b
ds: 0x00000023 es: 0x00000023 fs: 0x00000023 gs: 0x0000000f
cr2: 0x00000028
Logical CPU: 2
Error Code: 0x00000004
Trap Number: 14
来源：https://stackoverflow.com/questions/34523803/watchos2-notification-simulator